Safety razor blade sharpener



March 14, 1944. B. 5. KING SAFETY RAZOR BLADE SHARPENER Filed Feb. 3,1943 4 (yyz,

IN V EN 7:0R.

ATTORNEYS Patented Mar. 14-, 1944 UNITED STATES PATENT OFFICE 2,343,981SAFETY RAZOR BLADE SHARPENER Benton S. King, Brookhaven, Miss.Application February 3, 1943, Serial No. 474,565

2 Claims.

My invention relates to safety razor blades, and has among its objectsand advantages the provision of an improved blade sharpener comprisingonly two working parts which are of simple and durable construction.These parts may be made from glass or any other material havingsharpening properties.

In the accompanying drawing:

Figure 1 is an end view.

Figure 2 is a side view.

Figure 3 is a sectional view along the line 3--3 of Figure 1.

Figure 4 is a sectional view along the line 4-4 of Figure 3.

Figure 5 is a side View of a rotary part, and

Figure 6 is a view of the same part in a different position.

In the embodiment of the invention selected for illustration, I make useof a glass cup Iii having an end wall l2 and a flange l4 constituting acontinuation of the end wall extended beyond the perimeter of the cupH3. This cup is circular in cross section. A flange I5 is formed at theopposite end of the wall l8 of the cup. This cup may be secured to asupport 20 by straps 22 bent to fit the cup and secured at their ends tothe support 28 by screws 24.

Inside the cup H) is arranged a rotary cup 25 having an end wall 28terminating in a flange 3E] engageable with the flange it, the end 32 ofthe wall 34 terminating in slightly spaced relationship with the wall12. An annular flange 36 is formed on the wall 36 and has bearingengagement with the inner face of the wall l8. The wall 34 is alsoprovided with an annular shoulder 38 having bearing engagement with theinner face of the wall i8. Thus the rotary cup 26 may be rotatedrelatively to the cup iii, and the wall 34 is supported concentricallyof the inner face of the Wall l8 and in slightly spaced relationshiptherewith.

Two ribs iil are provided on the exterior face of the wall 36. Theseribs extend longitudinally of the cup 25. Figure 5 illustrates aconventional razor blade 42 of the double edged type as being mounted onone of the ribs 40. Projections 44 are also provided on the exteriorface of the wall 34 to support blades ofthe single edged type or bladeshaving perforations therein.

In operation, one or more razor blades are mounted on the wall 34 andthe cup 26 inserted in the cup H), which brings the blades to flexedpositions between the walls l8 and 34, with the edges of the bladesengaging the Wall l8 to be sharpened thereby when the cup 26 isoscillated inside the cup ii). To facilitate such oscillation, knobs 46are attached to the wall 28 and constitute convenient grips. Water maybe supplied to the space between the Walls 18 and 34. Notches 48 areprovided in the flange 36 through which water may flow.

Without further elaboration, the foregoin will so fully explain myinvention, that others may, by applying current knowledge, readily adaptthe same for use under various conditions of service.

I claim:

1. A razor blade sharpener comprising a first glass cup having an innersharpening face, a second glass cup rotatably guided inside said firstcup, projection means on said second cup for keying razor blades theretoand rotate the latter relatively to the first cup through rotation ofthe second cup, said second cup being of smaller diameter than saidfirst cup to provide a space between the two cups but of such size as tobend the blades and hold their cutting edges in pressure engagement withsaid sharpening face, said second cup being provided with a flange and ashoulder guidingly engaging the inner face .of said first cup, saidflange being provided with openings for the passage of a liquid, and aknob means on said second cup to rotate the latter relatively to saidfirst cup.

2. A-razor blade sharpener comprising a first glass cup having an innersharpening face, a second glass cup rotatably guided inside said firstcup, projection means on said second cup for keying razor blades theretoand rotate the latter relatively to the first cup through rotation ofthe second cup, said second cup being of smaller diameter than saidfirst cup to provide a space between the two cups but of such size as tobend the blades and hold their cutting edges in pressure engagement withsaid sharpening face, said first cup being provided with flanges at itsends, and strap means extending about said first cup adjacent saidflanges to secure the first cup to a support.

- BENTON S. KING.

